Gas-burner for ranges.



T. H. KELLY.

GAS BURNER FOR RANGES. APPLICAHON FILED DEC. 7. 1914.

Patented Aug. 24, 1915.

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GAS-BURNER FOR RANGES.

Specification of Letters Patent.

Patented A11 24, 1%15.

Application filed December 7, 1914. Serial No. 875,787.

To all whom it may concern Be it known that I, THOMAS H. KEL Y, a subject of Great Britain, residing at Pawtuxet, in the town of WVarwick, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Gas-Burners for Ranges, of which the following is a specification.

My invention relates to a burner adapted for use within the fire-box of a range, for the consumption of gas for fuel in heating and cooking purposes, in lieu of coal.

The invention consists of a flat casting provided with a series of chambers having gas-jets projecting upwardly therefrom; means to deliver a mixture of gas and air to the chambers of said casting; a torch for igniting the device; a hood surrounding the sides of and extending above said casting and having a closed top provided with opposed annular hubs, and an elbow arranged to swivel on each hub to deflect the flame to the point desired for heating.

The object of my invention is to construct a device of this character capable of increasing the intensity of the mixture of gas and air and to give off a large volume of flame at the deflectors or heating points of the device.

In the accompanying sheet of drawings, wherein like reference characters indicate like parts, Figure 1 is a central longitudinal section of my improved gas-burner, as applied to a range, the latter being indicated by dotted lines. Fig. 2 is a plan view of the lower casting which receives the mixture of gas and air, and, Fig. 3 is a transverse section of the device, taken on line 0cx of Fig. 1.

adenotes a flat casting, preferably rectangular as shown, adapted to rest upon the usual surrounding ledge lwhich supports the lining of a fire-box r' of a range; the lining and grate of the latter being removed. The casting a. has a series of chambers extending around its I sides and central portion, as at a a?, and the top wall of said casting is provided with rows of fine orifices to form gas-jets The chambers of the casting a;- receive a mixture of gas and air from the piping arrangement b and e.

The gas supply pipe b has a branch connection P-- with an intake fitting cZ-, secured upon the end of the pipe e, which communicates with the chamsaid casting.

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an intake opening 6Z for a draft of cold air to pass through the pipe e to the chambers a 66 A branch pipe connec tion Z leads from the gas supply pipe b to a small tube -b whose inner end terminates beneath an opening formed through the casting .a, as at a point -b* 1n Fig. 2, to serve as a torch to ignite the mixture of gas and air from the jets in The branch pipes -6 6 are' provided with cocks 0 0 The pipe connection -eis axial with the center of the branch pipe b and said pipe e is relatively larger in diameter than the bore of the latter in order to permit a proper amount of draft to force through said pipe eto": the combustion chambers o o The pipe e and tube b pass through openings formed through the rear wall of the range, as at points -s sin F 1g. 2, and which openings provide bearings to support said pipe and tube, and at the same time the cooks being located at the rear of the range are kept free from accidental disarrangement.

A cast-ing in the form of a hood f surrounds the sides of the casting a and rests upon lugs a integral of the latter. The hood fextends above the jets a to provide a longitudinal chamber f from whence said hood converges into a neck f which is centrally of the casting and terminates with a closed top f extending longitudinally of the same. The opposed ends of the top are in the form of annular hubs f", upon which are mounted elbow members g. The members g are secured to the hubs f* by screws -h which have reduced portions to freely move within segmental slotted openings -g formed through the walls of the hubs -f*-. The members g, which form the burners proper, are made to swivel upon the hood -f in order to permit of deflecting the flame to the top of the range, or toward the oven t, to the positions shown by full and in dotted lines in Fig. 3.

The cook 0 is first opened to ignite the torch at its point b*, by means of a match or wax taper. The cock o is next opened to permit the flame of the torch to light all of the jets a after which the cock c is closed. From the mixing chambers a a the numerous jets a throw off minute bluish flames into the long chamber f of the hood, and these flames are forced by the air draft from the pipe e to unite into a volume passing through the hollow neck f to the head f which separates the flame into two volumes passing from the mouths g of the burners.

The novel form of the hood casting, as described, aids the combustible mixture in the chamber to increase the tempera ture of the volume of flame passing through the neck of said casting.

In order that my improved device may be utilized to heat the ordinary hot water system within the fire-box, the sides of the hood f are provided with rows of outwardly beveled perforations f to allow a portion of the flame within the chamber to strike against the water pipes w, in-

dicated by dotted lines in Fig. 3.

What I claim and desire to secure by Letters Patent, is

In a gas-burner for ranges, the combination of a flat casting having a plurality of chambers open to gas-jets formed in the top of said casting; means to supply the chambers with a mixture of gas and air; means to permit lighting the jets of said casting; a hollow casting to form a hood surrounding the said first mentioned casting and providing a combustion chamber above the jets of the latter, said hood casting converging to a central hollow neck terminating with a transverse closed top having projecting opposed annular hubs; a segmental slotted opening in each hub; elbows to form flame-deflectors mounted on the hubs; a screw secured in each deflector and having a reduced part to move within the slotted opening of each hub; and said hood casting having rows of outwardly beveled perforations to give off a portion of the flame in the combustion chamber, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

THOMAS H. KELLY. Witnesses:

G. T. HANNIGAN, IsAAo A. KENWORTHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. 0. 

